i'm quite surprised by the response of the vdpau-enabled driver on ion le in combination with mplayer and lucid, since the reproduction of the same movies under windows xp with purevideo/mpc hc is completely flawless.

it happens with every movie with sufficient bitrate, and it's not the cpu's (atom n270) fault since it's very underloaded (under 33% most of the time, it actually falls back to 800Mhz from time to time during reproduction).

can you help me finding the reason of the problem and possibly a solution?

thank you a lot

i rather detest being forced to windows and i'd prefer a linux desktop (the quality of the linux driver was actually was one of the main reason for buying nvidia hardware instead of the other brands)

i'm attaching trace + mplayer output (the message about the codec failing is present in certain cases and missing elsewhere, but i think that message is the result, not the cause).

i'm using NVIDIA-Linux-x86-195.36.15-pkg1.run , and i tried even to put the current repository debs outside of the loop and manually recompile mplayer from the last revision, but nothing changed performance-wise.

Also, you can achieve the best performance by disabling compiz ("desktop effects"), and disable the X composite extension in your xorg.conf file. This will make VDPAU display code work in a manner much more similar to XP.

thanks, it seems that disabling composite (*), a bit of triple buffering and caching completely resolved the issue; actually now it seems to work better in linux than in windows. i'm keeping an eye on it but seems fine.

thank you again.

(*) a pity though; the ability of zooming the desktop could have been cool and useful too, on such a small screen (netbook)

CORRECTION: disabling composite extension leads to the best results, but even with triple + composite-on the results are not perfect but okay-ish